inmanta / inmanta/std

Allow to use keyword arguments in plugins called within a template

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compiler enhancement usability
Dominant language
Python
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0
Forks
6
Avg merge
12h 25m
Merged PRs (30d)
5

Description

Consider the following model

std::print(std::template("/ip.j2", net="192.168.0.0/24"))

and the following template:

{{ net | std.ipindex(1, keep_prefix=true) }}

The compiler will fail with the given exception:

TypeError: _get_template_engine.<locals>.curywrapper.<locals>.safewrapper() got an unexpected keyword argument 'keep_prefix'

It should be possible to call these plugins this way. The config module already does it, this is a workaround to the original model:

std::print(config::get_template_value_as_string({"path": "template:///ip.j2}", "path", net="192.168.0.0/24"))

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the std::template call and the template plugin invocation shown in the report, then compare their keyword-argument handling with config::get_template_value_as_string, which already supports the workaround. Reproduce the failure using std.ipindex(1, keep_prefix=true); done means keyword arguments work for plugins called within a template without the unexpected-keyword exception.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
backend
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
48/100

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